Back button not working in SecScanQR

Expected behavior

I launched SecscanQR, Tapped on the 3 dotted icon by the right, then selected settings, tapped scanner so i can set the scanner, then return back to the start page.

Actual behavior

when i clicked on settings, then selected scanner i set what i wanted to set, i pressed the back button by the top it took me back once to the page that says Scanner i tapped the back button again nothing happened i couldn't return back to the start except i quit the app.

How to reproduce

download here

Launch SecScanQR,
click the 3 dotted icon,
click settings,
Tap the back button.

Device Used: Infinix Note 3 or Infinix X601

Operating system: Android 7.0 Nougat

App Version 1.1.1 (4) - Added on 2017-11-14

Recording Of The Bug

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Posted on Utopian.io - Rewarding Open Source Contributors

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